tectonic hazards- section A Flashcards
(24 cards)
plate boundary
the boundary or margin between 2 tectonic plates
tectonic hazard
a natural hazard causes b y the movement of tectonic plates
where are earthquakes and volcanoes primarily found
along the edges of the earths tectonic plates
what margins to volcanos occur at
constructive and detructive
wheat margins are earthquakes found at
all types
what 2 crusts is the earth made up of
oceanic and continental
oceanic crust
found underneath oceans, dense and can be subducted
continental crust
found under land masses and continents, older than oceanic, less destroyed
whats the “ring of fire”
a group of volcanoes located along the pacific plate
destructive plate margin
where either an oceanic or continental plate move towards each other and causes an earthquake and composite volcanoes
what happens when 2 continental plates collide
a fold mountain is formed
constructive plate margin
where plates move away from each other forming a shield volcano
conservative plate margin
the plates move side by side or past each other at different speeds causing an earthquake
2 types of volcanoes
composite and shield
3 primary impacts of an earthquake
loss of life, collapsing buildings, ground shaking
subduction
when the oceanic plat is forced beneath the continental plate
3 secondary impacts of an earthquake
homelessness, power outages, tsunamis
3 Ps
prediction, protection, planning
how to predict
seisometer to monitor the earths tremors
how to plan
hospitals emergency services and residents practice of an earthquake
how to protect
constructing buildings safe to live in so they don’t collapse e.g. rubber shock absorbers
immediate responses
search and rescue
long- term responses
rebuilding schools, hospital and housing
what were the effects of typhoon Haiyan
Over 6,000 people died
1.1 million homes damaged or destroyed
Lack of clean water, food, and shelter led to disease outbreaks (e.g. cholera)
Looting and violence in some areas due to desperation
